package org.gd.hellojavacore.tests;

public class LongTest {

    public static void main(String...a) {
        String str = "1002538839";
        long l = Long.parseLong(str);
        System.out.println(l);
        System.out.println(Long.toString(l));

        System.out.println(System.currentTimeMillis());
        System.out.println(System.currentTimeMillis());
        System.out.println(Long.valueOf(System.currentTimeMillis()).toString().length());
    }
}
